JPH08178152A - Corrosion resistant expansion joint - Google Patents
Corrosion resistant expansion jointInfo
- Publication number
- JPH08178152A JPH08178152A JP6336425A JP33642594A JPH08178152A JP H08178152 A JPH08178152 A JP H08178152A JP 6336425 A JP6336425 A JP 6336425A JP 33642594 A JP33642594 A JP 33642594A JP H08178152 A JPH08178152 A JP H08178152A
- Authority
- JP
- Japan
- Prior art keywords
- corrosion
- expansion joint
- joint
- steel
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007797 corrosion Effects 0.000 title claims abstract description 16
- 238000005260 corrosion Methods 0.000 title claims abstract description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000010935 stainless steel Substances 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 229920001567 vinyl ester resin Polymers 0.000 description 8
- 239000003365 glass fiber Substances 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 238000002845 discoloration Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Joints Allowing Movement (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、耐蝕性伸縮継手に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrosion resistant expansion joint.
【０００２】[0002]
【従来の技術】従来、火力発電所においてその装置に使
用されている金属製の伸縮継ぎ手（例えば、空気予熱器
出口から集塵器、集塵器出口から脱硫装置、脱硫装置出
口から煙突）は、硫酸露点となる煙道の低温部（２００
℃以下の温度箇所）が腐食してしまうという弱点があっ
た。2. Description of the Prior Art Conventionally, a metal expansion joint (for example, an air preheater outlet to a dust collector, a dust collector outlet to a desulfurization device, a desulfurization device outlet to a chimney) has been used in a thermal power plant for its equipment. , Low temperature part of flue which becomes sulfuric acid dew point (200
There was a weakness that the temperature (below ℃) was corroded.
【０００３】これは、硫黄化合物（ＳＯｘ）を含む廃ガ
スが、水分のある状態になると硫酸が発生し、特に、ガ
ス状態から水溶性になる時には、硫酸濃度が濃く、温度
が高いため、金属材料を著しく腐食させる硫酸露点腐食
を生ずるからである。This is because when waste gas containing a sulfur compound (SOx) becomes moist, sulfuric acid is generated, and particularly when the gas becomes water-soluble, the concentration of sulfuric acid is high and the temperature is high. This is because sulfuric acid dew point corrosion that significantly corrodes the material occurs.
【０００４】[0004]
【発明が解決しようとする課題】そこでこの発明は、上
記の欠点を除去し、酸・アルカリに強く耐蝕性に優れ、
また、雨水等による外部腐食に対しても堅牢な耐蝕性伸
縮継手を開発することにある。SUMMARY OF THE INVENTION Therefore, the present invention eliminates the above-mentioned drawbacks and is resistant to acids and alkalis and excellent in corrosion resistance.
Another objective is to develop a corrosion-resistant expansion joint that is robust against external corrosion such as rainwater.
【０００５】[0005]
【課題を解決するための手段】この発明の好適な例を述
べると、伸縮継手において、該継ぎ手の外面には耐蝕鋼
板を用い、内部にはＦＲＰ樹脂層を積層して設け、二層
に形成したことを特徴とする耐蝕性伸縮継手より構成さ
れる。A preferred example of the present invention will be described. In an expansion joint, a corrosion-resistant steel plate is used on the outer surface of the joint, and an FRP resin layer is laminated inside to form two layers. It is composed of a corrosion-resistant expansion joint.
【０００６】[0006]
【作用】そしてこの発明について、伸縮作動試験（常温
で５００回の伸縮作動、２００℃で３０００回の伸縮作
動を行ない、作動条件としては、伸縮量２４ｍｍ／１山
当たり片振り作動を行うものであり、この試験の結果、
ＦＲＰ部分の剥離、亀裂等の異常は見られなかった。In the present invention, the expansion / contraction operation test (expansion / contraction operation 500 times at room temperature, expansion / contraction operation 3000 times at 200 ° C., and the operation condition is that the expansion / contraction amount is 24 mm / 1 swing operation per mountain. Yes, the result of this test
No abnormalities such as peeling and cracking of the FRP portion were found.
【０００７】さらに、２００℃の雰囲気内で４８０時間
の耐熱試験を行ったところ、変色は見られるものの、亀
裂、軟化等の異常は見られなく、さらに、０℃の雰囲気
内で２４時間、そして１００℃の雰囲気内で２４時間を
１サイクルとし１０サイクルの熱衝撃試験を行ったとこ
ろ、変色も殆どなく、亀裂等の異常も見られない。Furthermore, when a heat resistance test was conducted in an atmosphere of 200 ° C. for 480 hours, discoloration was observed, but no abnormality such as cracking or softening was observed, and further, in an atmosphere of 0 ° C. for 24 hours, When a 10-cycle thermal shock test was conducted in an atmosphere of 100 ° C. for 24 hours as one cycle, there was almost no discoloration and no abnormality such as cracks was observed.
【０００８】[0008]
【表１】 [Table 1]
【０００９】テストピースを使用し、薬液に浸漬したも
のであり、ＦＲＰの変色は性能劣化ではなく、単に色調
の変化である。The test piece is used and immersed in a chemical solution, and the discoloration of the FRP is not a performance deterioration but a change in the color tone.
【００１０】[0010]
【実施例１】この発明の一実施例を図に従って説明する
と、伸縮継手（Ｘ）において、該継ぎ手の外面には耐蝕
鋼板（１）を用い、内部にはＦＲＰ樹脂層（２）を形成
して設け、二層に形成したことを特徴とする耐蝕性伸縮
継手より構成される。EXAMPLE 1 An example of the present invention will be described with reference to the drawings. In an expansion joint (X), a corrosion resistant steel plate (1) is used on the outer surface of the joint, and a FRP resin layer (2) is formed on the inside. And a two-layered corrosion-resistant expansion joint.
【００１１】尚、耐蝕鋼板（１）とは、ステンレス、耐
硫酸露点腐食鋼、耐候性鋼から選ばれたものである。The corrosion resistant steel plate (1) is selected from stainless steel, sulfuric acid dew point corrosion resistant steel and weather resistant steel.
【００１２】また、フランジ（３）はアングル材であ
り、ＦＲＰ樹脂層（２）は、耐蝕鋼板（１）に、プライ
マー（２ａ）、ビニルエステル（２ｂ）、ガラス繊維
（２ｃ）、ビニルエステル（２ｂ′）そしてトップコー
ト（２ｄ）の層を積層したものからなるものであり、厚
さは１．０〜３．０ｍｍ程度である。The flange (3) is an angle member, and the FRP resin layer (2) is formed on the corrosion-resistant steel plate (1) by a primer (2a), vinyl ester (2b), glass fiber (2c), vinyl ester (2). 2b ') and a layer of top coat (2d) are laminated, and the thickness is about 1.0 to 3.0 mm.
【００１３】[0013]
【実施例２】さらに、この発明の他の実施例を図３に従
って説明すると、伸縮継手（Ｘ）において、該継ぎ手の
外面には耐蝕鋼板（１）を用い、内部のＦＲＰ樹脂層
（２）を、該耐蝕鋼板（１）からプライマー（２ａ）、
ビニルエステル（２ｂ）、ガラス繊維（２ｃ）、ビニル
エステル（２ｂ′）、ガラス繊維（２ｃ′）、ビニルエ
ステル（２ｂ″）そしてトップコート（２ｄ）の層に積
層したものであってもよい。[Embodiment 2] Another embodiment of the present invention will be described with reference to FIG. 3. In the expansion joint (X), a corrosion resistant steel plate (1) is used on the outer surface of the joint, and the inner FRP resin layer (2) is used. From the corrosion-resistant steel plate (1) to the primer (2a),
It may be laminated on a layer of vinyl ester (2b), glass fiber (2c), vinyl ester (2b '), glass fiber (2c'), vinyl ester (2b ") and top coat (2d).
【００１４】[0014]
【発明の効果】この発明は、以上の構成よりなるもので
あり、この発明によれば、伸縮継手の内部にはＦＲＰ樹
脂層を設けたため、可撓性に富み繰り返し寿命は金属製
と同等であり、樹脂部分に経年劣化が生じても、耐蝕鋼
板が保護することになり、搬入、取り付けを現地の状況
に合わせて分割して製造することができ、現場で溶接施
工とともに現場で樹脂を塗布することも出来、部分的な
損傷等においても部分補修が簡単に行える等極めて有益
なる効果を奏するものである。According to the present invention, the FRP resin layer is provided inside the expansion joint according to the present invention. Therefore, the FRP resin layer is flexible and has a repeated life equivalent to that of metal. Yes, even if the resin part deteriorates over time, the corrosion-resistant steel plate will be protected, and the carry-in and installation can be divided and manufactured according to the local situation. It is also possible to carry out, and even if it is partially damaged, it is possible to perform a partial repair easily.
【図１】本発明の一実施例を示す一部欠截断面図であ
る。FIG. 1 is a partially cutaway sectional view showing an embodiment of the present invention.
【図２】本発明の一実施例を示すＦＲＰ層の説明図であ
る。FIG. 2 is an explanatory diagram of an FRP layer showing an embodiment of the present invention.
【図３】本発明の他の実施例を示すＦＲＰ層の説明図で
ある。FIG. 3 is an explanatory view of an FRP layer showing another embodiment of the present invention.
【図４】本発明の実施状態を示す断面図である。FIG. 4 is a sectional view showing an embodiment of the present invention.
１ ステンレス鋼板 ２ ＦＲＰ樹脂 ２ａ プライマー ２ｂ ビニルエステル ２ｂ′ビニルエステル ２ｂ″ビニルエステル ２ｃ ガラス繊維 ２ｃ′ガラス繊維 ２ｄ トップコート ３ フランジ Ｘ 伸縮継手 1 Stainless Steel Sheet 2 FRP Resin 2a Primer 2b Vinyl Ester 2b 'Vinyl Ester 2b "Vinyl Ester 2c Glass Fiber 2c' Glass Fiber 2d Top Coat 3 Flange X Expansion Joint
Claims (2)
蝕鋼板を用い、内部にはＦＲＰ樹脂層を積層して設け、
鋼板と樹脂層との二層に形成したことを特徴とする耐蝕
性伸縮継手。1. An expansion joint, wherein a corrosion-resistant steel plate is used on an outer surface of the joint, and an FRP resin layer is laminated inside the joint.
A corrosion resistant expansion joint characterized by being formed in two layers of a steel plate and a resin layer.
食鋼、耐候性鋼のいずれかであることを特徴とする請求
項１記載の耐蝕性伸縮継手。2. The corrosion resistant expansion joint according to claim 1, wherein the corrosion resistant steel plate is any one of stainless steel, sulfuric acid dew point corrosion steel, and weather resistant steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6336425A JP2712001B2 (en) | 1994-12-21 | 1994-12-21 | Corrosion resistant expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6336425A JP2712001B2 (en) | 1994-12-21 | 1994-12-21 | Corrosion resistant expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08178152A true JPH08178152A (en) | 1996-07-12 |
| JP2712001B2 JP2712001B2 (en) | 1998-02-10 |
Family
ID=18299003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6336425A Expired - Fee Related JP2712001B2 (en) | 1994-12-21 | 1994-12-21 | Corrosion resistant expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2712001B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098116C (en) * | 1997-10-09 | 2003-01-08 | 三菱重工业株式会社 | Gas-liquid contanct equipment adopting fibre reinforced plastic composite board and making method thereof |
| KR101699489B1 (en) * | 2015-10-07 | 2017-01-24 | 심성구 | Expansion joint assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5640161A (en) * | 1979-09-07 | 1981-04-16 | Bioresearch Inc | Underwater draining device |
| JPS6254911A (en) * | 1985-09-04 | 1987-03-10 | Ricoh Co Ltd | Thin film forming method and device |
| JPH03206288A (en) * | 1989-04-10 | 1991-09-09 | Fmc Corp | Bore seal made of plastic |
-
1994
- 1994-12-21 JP JP6336425A patent/JP2712001B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5640161A (en) * | 1979-09-07 | 1981-04-16 | Bioresearch Inc | Underwater draining device |
| JPS6254911A (en) * | 1985-09-04 | 1987-03-10 | Ricoh Co Ltd | Thin film forming method and device |
| JPH03206288A (en) * | 1989-04-10 | 1991-09-09 | Fmc Corp | Bore seal made of plastic |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098116C (en) * | 1997-10-09 | 2003-01-08 | 三菱重工业株式会社 | Gas-liquid contanct equipment adopting fibre reinforced plastic composite board and making method thereof |
| KR101699489B1 (en) * | 2015-10-07 | 2017-01-24 | 심성구 | Expansion joint assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2712001B2 (en) | 1998-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |